Panta Rhei
There are at least 4 bands with the name "Panta Rhei" which out of these, two of them were obscure Prog Rock bands;
1.) Played in Hungary, from 1974 to late 80s, in various styles, from jazz to progressive rock. They also designed and built their own synthesizers and released their electronic works as P.R.Computer. Panta Rhei were well known in Hungary for their classical adaptations (in particular from Bela Bartok and Edward Grieg) and their instrumental compositions.